Ok. I've read too many post on here and my head is spinning. I want to put f250 springs on to level my 89 f150 300 I6 2wd 5spd. I'm getting these springs from a local pull your part so I need to to know if there's a difference between 2wd, 4wd, long bed, short bed, ext cab, custom etc. Any help would be greatly appreciated.